socket.io test
emit the 'foobar' event
emit the 'foobar2' event
emit the 'foobar3' event
send the 'foobar' message
send the 'foobar2' message
send the 'foobar3' message
send the {'test':'foobar'} JSON message
send the {'test':'foobar2'} JSON message
send the {'test':'foobar3'} JSON message